I would say that yes some women/couples choose it because it interupts their plans for travel, career etc. I would hope that it is not seen by many as a form of contraception and that it wouldn't be taken lightly, but I would be naive to think that it isn't the case for at least some.
Abortion is far more likely to be carried out in the cases of young, poor and/or unmarried women (in today's lifestyle unmarried women are those not in stable relationships).